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1. 发明专利

JPH0755978A WATER INJECTION DEVICE FOR REACTOR CONTAINER COOLING SYSTEM 失效
公开(公告)号：JPH0755978A
公开(公告)日：1995-03-03
申请号：JP20527693
申请日：1993-08-19
申请人： TOSHIBA CORP , JAPAN ATOMIC POWER
发明人： KATAOKA KAZUYOSHI , NARABAYASHI SUNAO , MIZUMACHI WATARU , SAKUMA TAKU , SHIOIRI AKIO , TABATA HIROAKI
IPC分类号： G21C9/00 , G21C15/18
摘要： PURPOSE:To drastically reduce the volume of a cooling water pool at reactor building upper part. CONSTITUTION:At reactor building upper part, a cooling water pool 7 of a static containment cooling system is provided. Outside the reactor containment 1, a water source 18 is provided. The steam generated in the cooling water pool 7 is sent through a steam supply pipe 13 to a steam injector 11. Then, the water in the water source 18 is sent through a water injection pipe 24 to the cooling water pool 7.

2. 发明专利

JPH09243779A NUCLEAR REACTOR 失效
公开(公告)号：JPH09243779A
公开(公告)日：1997-09-19
申请号：JP5213196
申请日：1996-03-08
申请人： JAPAN ATOMIC POWER , TOSHIBA CORP
发明人： YOSHIOKA YUZURU , KADOTANI MITSUTO , TABATA HIROAKI , SUGANO MINORU , YOSHIHISA YASUMASA , NARABAYASHI SUNAO , ARAI KENJI , YANO TAKASHI , SHIOIRI AKIO , OIKAWA HIROHIDE , MIZUMACHI WATARU , YASUOKA MAKOTO
IPC分类号： G21C15/18
摘要： PROBLEM TO BE SOLVED: To properly cope with a minor rupture accident and improve the safety and economic property of a nuclear reactor by injecting water into a reactor vessel by a steam injector. SOLUTION: When a minor rupture accident occurs, an automatic pressure reducing system 5 or an isolation condenser is operated to reduce the internal pressure of a reactor pressure vessel 2. When the internal pressure of the vessel 2 is lowered to a prescribed value, a low pressure core water injecting system 16 is operated. After several minutes from operation start, combining water from a steam injector 17 is injected into the vessel 2. The internal pressure of the vessel 2 is lowered by water injection of the water injecting system 16, and when the downstream side pressure of a check valve 14 becomes lower than the head pressure of a pool 11, the valve 14 is opened to inject water in the pool 1 into the vessel 2 through a piping 12. Just after the occurrence of the minor rupture accident, the level in the vessel is recovered and kept by water injection of the water injecting systems 16, 10 to ensure the cooling of a core 3. The steam in the vessel 2 is released into the dry well DW of a reactor container 1 to ensure a long-term cooling.

3. 发明专利

JPH0565900A STEAM INJECTOR 失效
公开(公告)号：JPH0565900A
公开(公告)日：1993-03-19
申请号：JP22701891
申请日：1991-09-06
申请人： TOSHIBA CORP
发明人： NARABAYASHI SUNAO , MIYANO HIROSHI , OZAKI OSAMU , MIZUMACHI WATARU , TANABE AKIRA , TONEGAWA REI , SHIOIRI AKIO
IPC分类号： F04F5/24 , F04F5/36
摘要： PURPOSE:To obtain a large capacity of water injection at a high delivery pressure by a boosting diffuser and also a supply steam flow amount can be set to an optimum value by respectively supplying center steam to a center steam nozzle, water to a water nozzle and peripheral steam to a steam/water mixing nozzle, in a casing. CONSTITUTION:A center steam nozzle 25 and a hollow water nozzle driving shaft 26 are concentrically arranged on an upper part in a tubular casing 24 to form a water nozzle 26a on a point end part of the shaft 26. A peripheral steam supply pipe 35 is mounted on a side surface of the casing 24 below a guide metal 34 interposed between an internal surface of the casing 24 and an external surface of the shaft 26, and a steam/water mixing nozzle 36 is mounted on the internal surface of the casing 24 downward from this supply pipe 35 so as to surround the water nozzle 26a. A throat 37 is mounted on a lower end of this nozzle 36, and a boosting diffuser 38 is mounted on a lower end of the throat 37 to connect a delivery pipe 54 to a lower end of the casing 24 and a supply water pipe 55, connected to the water nozzle 26a, to an upper part side surface of the casing 24.

4. 发明专利

JPH07119700A JET PUMP 失效
公开(公告)号：JPH07119700A
公开(公告)日：1995-05-09
申请号：JP26365393
申请日：1993-10-21
申请人： TOSHIBA CORP
发明人： NARABAYASHI SUNAO , NEI HIROMICHI , IWANAGA MASAKAZU , MIZUMACHI WATARU , TANABE AKIRA
IPC分类号： G21C15/25 , F04F5/10 , F04F5/46
摘要： PURPOSE:To reduce a pressure loss and cavitation by providing plural outer peripheral side nozzle parts projected to the suction side on the outside concentric circle of a center side nozzle part, and making the respective outer peripheral side nozzle parts shorter than the center side nozzle part. CONSTITUTION:A multi-stage accelerating rotary driven water nozzle 32 is so constructed that a center nozzle 36 is provided in the shaft center part, and outer peripheral rotary nozzles 37a-37d which are plural outer peripheral side nozzle parts are disposed in the circumferential direction by equal pitches on the concentric circle on the outside of the center nozzle. The center nozzle 36 and the outer peripheral rotary nozzles 37a-37d are connected integrally to each other by branch pipes 38a-38d projected radially on the side of the center nozzle 36. Further, the length of projection of each outer peripheral rotary nozzle 37a-37d is made a little smaller than that of the center nozzle 36, and the central axis ''a of the center nozzle 36 is coaxially aligned with the central axis Ob of a diffuser. Thus, a fluid can be accelerated by different sections so as to decrease a pressure loss.

5. 发明专利

JPS5966630A Louver window at air outlet port 失效
标题翻译：空气出口端口的窗户
公开(公告)号：JPS5966630A
公开(公告)日：1984-04-16
申请号：JP17586982
申请日：1982-10-06
申请人： Shin Nippon Kucho Kk , Toshiba Corp , Toshiba Eng Co Ltd
发明人： MIZUMACHI WATARU , OOKI MASAO , HIROOKA RIYOUICHI , HIROSE SHIYOUJI , YOKOYAMA KUNIO , MASUZAWA GOROU
IPC分类号： F24F7/00 , E04B1/70 , F24F7/04
摘要： PURPOSE: To define an air outlet and inlet ports close each other and significantly shorten the length of exhaust and fresh air ducts, by providing an air exhaust port with a louver window constituted by a louver boards extending in a vertical direction, the louver boards being arranged to face in the opposite direction of air intake port, in the Diesel generator chamber and the like of a nuclear power plant.
CONSTITUTION: A louver window is arranged at an air outlet port 3, being constituted by the louver window having a plural number of louver boards 10 provided vertically to a frame having an upper and a lower muntin 12, 13 and vertical muntins 14, 15. The louver boards 10 are arranged to cover the air outlet port 2. The louver boards 10 are also positioned to extend in the vertical direction, facing to the opposite direction of air intake port 3 defined in an adjacent position of the same wall. That is, each of louver board 10 is provided with an angle α in the opposite direction of air intake port 3 relative to the depth-wise direction of air outlet port 2. The angle α is preferably determined in the range 30W60°.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：为了确定出气口和进气口彼此靠近，通过提供一个排气口和一个由沿垂直方向延伸的百叶窗构成的百叶窗，大大缩短排气和新鲜空气管道的长度，百叶板是排列成与进气口相反的方向，在核电站的柴油发电机室等中。构成：在通风口窗口上设置有一个通气窗，该百叶窗由具有多个百叶窗板10构成，百叶窗板垂直设置在具有上部和下部薄层12,13的框架以及垂直方向14,15的框架上。百叶窗板10被布置成覆盖空气出口2.百叶板10还定位成在垂直方向上延伸，面向与限定在相同壁的相邻位置的进气口3相反的方向。也就是说，每个百叶板10相对于空气出口2的深度方向在空气吸入口3的相反方向上设置有角度α。角度α优选地在30-60度的范围内确定。。

6. 发明专利

JPH10160884A EMERGENCY CORE-COOLING SYSTEM OF REACTOR POWER PLANT 失效
公开(公告)号：JPH10160884A
公开(公告)日：1998-06-19
申请号：JP31724496
申请日：1996-11-28
申请人： TOSHIBA CORP
发明人： MIZUNO KATSUYUKI , TANABE AKIRA , MIZUMACHI WATARU , SATO TAKASHI , KUBOKOYA TAKASHI
IPC分类号： G21C15/18
摘要： PROBLEM TO BE SOLVED: To provide an emergency core cooling system of reactor power plant which is combinedly constituted of a system separating the emergency core cooling system of a BWR power station into 3 divisions and injecting cooling water in high pressure and low pressure of the reactor in each division, and a system capable of spray cooling in the reactor containment. SOLUTION: An emergency core cooling system of a reactor power station separates the emergency core cooling system of a BWR in 3 divisions, is provided with high pressure water injection systems 23a and 23b and residual heat removal systems 19a and 19b and with heat exchangers 17 to enable spray cooling in the reactor containment in the first and second divisions, is provided with a reactor core isolation cooling system 21 and a residual heat removal system 19c and a heat exchanger 17 to enable spray cooling in the reactor containment in the third division, and is provided with two systems of automatic depressurization systems 20a and 20b independently of the systems of the three divisions.

7. 发明专利

JPS5966629A Louver window at air outlet port equipped with wind shielding device 失效
标题翻译：空气出风口的风窗设有风罩设备
公开(公告)号：JPS5966629A
公开(公告)日：1984-04-16
申请号：JP17586882
申请日：1982-10-06
申请人： Shin Nippon Kucho Kk , Toshiba Corp , Toshiba Eng Co Ltd
发明人： MIZUMACHI WATARU , OOKI MASAO , HIROOKA RIYOUICHI , HIROSE SHIYOUJI , YOKOYAMA KUNIO , MASUZAWA GOROU
IPC分类号： F24F7/00 , E04B1/70 , F24F7/04
摘要： PURPOSE: To define an air outlet and inlet ports close each other and significantly shorten the length of exhaust and fresh air ducts in a Diesel generator chamber and the like of nuclear power plant.
CONSTITUTION: A wind shielding plate 20 is provided to project from the wall surface of building between an air outlet port 2 and an air inlet port 3. The projecting height (h) of wind shielding plate is determined at least as h=H/L× (0.29L+0.45x)×[1-1.3(l-0.4L)/L], wherein L: air intake port, lateral dimension (mm), H: air intake port, longitudinal dimension (mm), x: distance (mm) between an air outlet port and the wind shielding plate, l: the clearance between the air outlet port and the air intake port 0
摘要翻译：目的：确定出气口和入口端口彼此靠近，并显着缩短核电站柴油发电机室等中排气和新鲜空气管道的长度。构成：风挡板20设置成从空气出口2和空气入口3之间的建筑物的墙壁表面突出。挡风板的突出高度（h）至少确定为h = H / LX （0.29L + 0.45x）X [1-1.3（1-0.4L）/ L]，其中L：进气口，横向尺寸（mm。），H：进气口，纵向尺寸（mm。），x 空气出口和挡风板之间的距离（mm。），l：出风口和进气口0 = x之间的间隙。当通过空气出口2的百叶窗10从室内空气排出空气时，排出的空气在排出周围的空气的同时被扩散。然而，通过挡风板20抑制扩散，从而将排气进入进气口3的进入速度限制在低于5％。

8. 发明专利

JPS5966628A Louver window of air exhaust port 失效
标题翻译：空气排气口的窗户
公开(公告)号：JPS5966628A
公开(公告)日：1984-04-16
申请号：JP17586782
申请日：1982-10-06
申请人： Shin Nippon Kucho Kk , Toshiba Corp , Toshiba Eng Co Ltd
发明人： MIZUMACHI WATARU , OOKI MASAO , HIROOKA RIYOUICHI , HIROSE SHIYOUJI , YOKOYAMA KUNIO , MASUZAWA GOROU
IPC分类号： F24F7/00 , E04B1/70 , F24F7/04
摘要： PURPOSE: To prevent entrance of an exhaust air into an air intake even if an air exhaust port and the air intake are formed in an adjoining manner in the same wall surface, by a method wherein, in a diesel generator room in an atomic power station, a louver window, comprising lateral louver boards, is installed to the air exhaust port, and air direction plates, directed in an opposite direction to that of the air intake, are installed in combination inside the louver window.
CONSTITUTION: When an exhaust air from the interior 4 of a building a forcibly drafted toward an air direction device 20, the air, colliding with air direction plates 21 of the air direction device 20, is forced to flow horizontally in the reverse direction to that of an air intake 5. The exhaust air, passing through the air direction device 20, collides with louver boards 11 of a louver window 10, resulting in flowing downward. Thus, an air stream, exhausted from a louver window, is forced to flow obliquely downward, and even where an air exhaust port and the air intake are formed in an adjoining manner in the same wall surface, the exhaust gas may be prevented from entrance into the air intake.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：为了防止排气口和进气口在同一壁面上以相邻的方式形成排气口进入进气口，通过一种方法，在原子能发电站的柴油发电机室包括侧面百叶窗板的百叶窗，安装在排气口上，并且沿与空气进口相反的方向导向的空气方向盘组合安装在百叶窗内。构成：当从建筑物的内部4向空气方向装置20强制地排出空气时，与空气方向装置20的空气方向板21碰撞的空气被迫沿与该空气方向装置20的空气方向装置20相反的方向水平地流动，通过空气方向装置20的排出空气与百叶窗10的百叶板11碰撞，导致向下流动。因此，从百叶窗排出的空气流被迫向斜下方流动，即使在同一壁面上以相邻的方式形成排气口和进气口的情况下，也可以防止排气入口进入进气口。

9. 发明专利

JPH08248166A REACTOR CONTAINER COOLING FACILITY 失效
公开(公告)号：JPH08248166A
公开(公告)日：1996-09-27
申请号：JP5216395
申请日：1995-03-13
申请人： TOSHIBA CORP
发明人： SATO TAKASHI , TSUDA MASAHIKO , TANABE AKIRA , MIZUMACHI WATARU , SHIMIZU TAKEO
IPC分类号： G21C9/00 , G21C13/00 , G21C15/18
摘要： PURPOSE: To ease influence on earthquake-proof design and disposition design as well as restriction on device disposition. CONSTITUTION: Condensed water return piping 6 and steam suction piping 9 communicating with a dry well 4 penetrate the upper end face of a nuclear reactor container 2 and are connected. The steam suction piping 9 is connected to the upper end of a condenser 13 in a cooling tank 12 through a isolation valve 10a, and the condensed water return piping 6 is connected to the lower end of the condenser 13 through another separation valve 10b. The condenser 13 is connected to a water source 16 through cooling water supply piping 17. The cooling water supply piping 17 is connected to a water injection pump 18 and a valve 19 which are independent of emergency alternating current. An atmosphere vent pipe 15 is connected to a cooling tank 12. Thereby, the cooling tank 12 is miniaturized and restriction on disposition can be eased.

10. 发明专利

JPH07209461A BOILING WATER REACTOR AND FUEL ASSEMBLY 失效
公开(公告)号：JPH07209461A
公开(公告)日：1995-08-11
申请号：JP410294
申请日：1994-01-19
申请人： TOSHIBA CORP
发明人： NARABAYASHI SUNAO , YAMAMOTO SOUYA , FUJIMOTO SHIGERU , KATAOKA KAZUYOSHI , MIZUMACHI WATARU , SUMITA SUSUMU
IPC分类号： G21C3/33
摘要： PURPOSE:To reduce the relative displacement of fuel assembly, and prevent the reactivity application in a short time by providing a means for constraining the relative displacement between a plurality of fuel assemblies in the lattice of an upper lattice plate to a degree such that the neutron bundle detected by a detecting means never exceed a prescribed value at earthquake. CONSTITUTION:A fuel assembly 8 upper part is strongly pushed to an upper lattice plate by the action of a highly rigid leaf spring 21 as a rolling preventing metal fitting and a thick fuel pad 24, and the fuel assembly is thus sufficiently rigid to a large horizontal external force. The maximum thickness 2 including the displacement limiting projection 25 of a channel furnace 20 is set sufficiently large, whereby the gap of the fuel assembly 8 can be limited to a prescribed value. The channel furnace 20 is mounted on the fuel assembly 8, and two highly rigid leaf springs 21 are combined thereto. The spring constant of the spring 21 is set to a spring constant calculated from the earthquake scram generation allowable maximum displacement and horizontal load, whereby the relative displacement of the assembly 8 is reduced, and the reactivity application in a short time can be prevented.

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